Table 2 NOS3 G894T genotype distribution among AD cases and controls in the included studies.

From: The nitric oxide synthase 3 G894T polymorphism associated with Alzheimer’s disease risk: a meta-analysis

First author

Cases

Controls

Pa (HWE)

G/G

G/T

T/T

G/G

G/T

T/T

Dahiyat M -1

136

103

21

80

112

15

0.004

Dahiyat M -2

95

76

8

74

91

21

0.376

Crawford F

129

134

24

61

49

10

0.971

Higuchi S

350

57

4

297

52

1

0.416

Emahazion T

48

59

14

70

68

14

0.664

Kalman J

30

15

6

22

29

0

0.005

Kunugi H

149

23

0

143

21

1

0.812

Monastero R

62

77

10

65

76

8

0.017

Sanchez-Guerra M

97

154

50

101

145

63

0.408

Singleton A

88

96

28

43

53

10

0.269

Tedde A

91

106

23

38

42

15

0.554

Akomolafe A -1

193

42

0

56

25

1

0.326

Akomolafe A -2

109

119

31

61

55

11

0.778

Blomqvist ME

199

145

38

81

77

12

0.270

Guidi I

210

154

41

110

120

23

0.228

Yang Z

56

11

1

121

36

1

0.334

Zhou Y

441

77

12

495

92

14

<0.001

Li H

285

316

87

292

322

67

0.108

Styczynska M

106

38

10

100

60

16

0.120

Wang B

296

40

2

299

76

3

0.441

Azizi Z

67

30

3

54

44

2

0.039

Ferlazzo N

28

29

12

33

25

11

0.108

Giedraitis V

37

36

6

183

148

30

0.992

  1. HWE: Hardy-Weinberg equilibrium.
  2. aP value for HWE test in controls.
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